Subtopic: Group 16 - Preparation, Properties & Uses |
68%
Level 2: 60%+
NEET - 2024
Hints
Which of the following ions have the same 'spin-only' magnetic moment?
| A. | Ti+3 | B. | Cr2+ |
| C. | Mn2+ | D. | Fe2+ |
| E. | Sc3+ | ||
Choose the most appropriate answer from the options given below:
| 1. | A and E only | 2. | B and C only |
| 3. | A and D only | 4. | B and D only |
Subtopic: d-Block Elements- Properties & Uses |
65%
Level 2: 60%+
NEET - 2024
Hints
Determine the IUPAC name of the compound with the molecular formula C₆H₁₄ that contains two tertiary carbon atoms.
1. 2-Methyl pentane
2. 2, 3-Dimethylbutane
3. 2, 2-Dimethylbutane
4. n-Hexane
Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
72%
Level 2: 60%+
NEET - 2024
Hints
Find the decreasing order of solubility of gases A, B and C in water if their Henry’s law constants, Kₕ, are:
A = 145 kbar
B = 2 × 10⁻⁵ kbar
C = 35 kbar
| 1. | B > C > A | 2. | A > C > B |
| 3. | A > B > C | 4. | B > A > C |
Subtopic: Concentration Terms & Henry's Law |
60%
Level 2: 60%+
NEET - 2024
Hints
Subtopic: Mechanism of Reactions |
71%
Level 2: 60%+
NEET - 2024
Hints
Subtopic: Reaction Intermediates ; Preparation & Properties |
72%
Level 2: 60%+
NEET - 2024
Hints
Given below are two statements :
In the light of the above statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are False.
2. Statement I is True and Statement II is False.
3. Statement I is False but Statement II is True.
4. Both Statement I and Statement II are True.
| Statement I : | Both \(\left[\text{Co}\left(\text{NH}_3\right)_6\right]^{3+}\) and \(\left[\text{CoF}_6\right]^{3-}\) Complexes are octahedral but differ in their magnetic behaviour. |
| Statement II : | \(\left[\text{Co}\left(\text{NH}_3\right)_6\right]^{3+}\) is diamagnetic whereas \(\left[\text{CoF}_6\right]^{3-}\) is paramagnetic. |
1. Both Statement I and Statement II are False.
2. Statement I is True and Statement II is False.
3. Statement I is False but Statement II is True.
4. Both Statement I and Statement II are True.
Subtopic: VBT, CFT & their Limitations |
74%
Level 2: 60%+
NEET - 2024
Hints
If 1 gram of sodium hydroxide was treated with 25 mL of 0.75 M HCl solution, the mass of sodium hydroxide left unreacted is equal to:
1. 250 mg
2. Zero mg
3. 200 mg
4. 750 mg
1. 250 mg
2. Zero mg
3. 200 mg
4. 750 mg
Subtopic: Millimole/Equivalent Concept |
54%
Level 3: 35%-60%
NEET - 2024
Hints
Given below are two statements :
In the light of the above statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are false.
2. Statement I is true and Statement II is false
3. Statement I is false but Statement II is true.
4. Both Statement I and Statement II are true.
| Statement I: | The boiling point of hydrides of Group 16 elements follow the order \(\text{H}_2 \text{O}>\text{H}_2 \text{Te}>\text{H}_2 \text{Se}>\text{H}_2 \text{S} .\) |
| Statement II: | On the basis of molecular mass, H2O is expected to have lower boiling point than the other members of the group but due to the presence of extensive H-bonding in H2O, it has higher boiling point. |
1. Both Statement I and Statement II are false.
2. Statement I is true and Statement II is false
3. Statement I is false but Statement II is true.
4. Both Statement I and Statement II are true.
Subtopic: Group 16 - Preparation, Properties & Uses |
71%
Level 2: 60%+
NEET - 2024
Hints
Arrange the elements Li, Be, B, C, and N in increasing order of their first ionization enthalpies:
| 1. | Li < B < Be < C < N | 2. | Li < Be < C < B < N |
| 3. | Li < Be < N < B < C | 4. | Li < Be < B < C < N |
Subtopic: Ionization Energy (IE) |
74%
Level 2: 60%+
NEET - 2024
Hints
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